GK Chesterton on why without constant attention the very things we want to preserve will be lost;

All conservatism is based upon the idea that if you leave things alone you leave them as they are. But you do not. If you leave a thing alone you leave it to a torrent of change. If you leave a white fence post alone it will soon be a black post. If you particularly want it to be white you must be always painting it again; that is, you must be always having a revolution. Briefly,if you want the old white post you must have a new white post.

The church is to change nothing of its message. Our goal is to keep an old white post — the unchanging truth about Christ. But to keep it we cannot afford to leave things alone. A great deal of work needs to go in to finding new and effective ways of communicating the same old message. To quote Chesterton we ‘must be always painting it again.’